3. Home ranges, territories, and seasonal movements of vertebrates of the Natural History Reservation. By Henry S. Fitch. Pp. 63–326, 6 plates, 24 figures in text, 3 tables. December 12, 1958.
4. A new snake of the genus Geophis from Chihuahua, Mexico. By John M. Legler. Pp. 327–334, 2 figures in text. January 28, 1959.
5. A new tortoise, genus Gopherus, from north-central Mexico. By John M. Legler. Pp. 335–343. April 24, 1959.
6. Fishes of Chautauqua, Cowley and Elk counties, Kansas. By Artie L. Metcalf. Pp. 345–400, 2 plates, 2 figures in text, 10 tables. May 6, 1959.
7. Fishes of the Big Blue River Basin, Kansas. By W.L. Minckley, Pp. 401–442, 2 plates, 4 figures in text, 5 tables. May 8, 1959.
8. Birds from Coahuila, Mexico. By Emil K. Urban. Pp. 443–516. August 1, 1959.
9. Description of a new softshell turtle from the southeastern United States. By Robert G. Webb. Pp. 517–525, 2 pls., 1 figure in text. August 14, 1959.
10. Natural history of the ornate box turtle, Terrapene ornata ornata Agassiz. By John M. Legler. Pp. 527–669, 16 pls., 29 figures in text. March 7, 1960.
Index Pp. 671–703.
Vol. 12. 1. Functional morphology of three bats: Eumops, Myotis, Macrotus. By Terry A. Vaughan. Pp. 1–153, 4 plates, 24 figures in text. July 8, 1959.